/*
 * Platform Dependent file for usage of Preallocted Memory
 *
 * Copyright (C) 1999-2019, Broadcom.
 *
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 *
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module which is
 * not derived from this software.  The special exception does not apply to any
 * modifications of the software.
 *
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * <<Broadcom-WL-IPTag/Open:>>
 *
 * $Id: dhd_custom_memprealloc.c 805764 2019-02-20 08:46:57Z $
 */

#include <linux/device.h>
#include <linux/slab.h>
#include <linux/miscdevice.h>
#include <linux/sched.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/io.h>
#include <linux/workqueue.h>
#include <linux/unistd.h>
#include <linux/bug.h>
#include <linux/skbuff.h>
#include <linux/init.h>

#ifdef CONFIG_BROADCOM_WIFI_RESERVED_MEM

#define WLAN_STATIC_SCAN_BUF0 5
#define WLAN_STATIC_SCAN_BUF1 6
#define WLAN_STATIC_DHD_INFO_BUF 7
#define WLAN_STATIC_DHD_WLFC_BUF 8
#define WLAN_STATIC_DHD_IF_FLOW_LKUP 9
#define WLAN_STATIC_DHD_MEMDUMP_RAM 11
#define WLAN_STATIC_DHD_WLFC_HANGER 12
#define WLAN_STATIC_DHD_PKTID_MAP 13
#define WLAN_STATIC_DHD_PKTID_IOCTL_MAP 14
#define WLAN_STATIC_DHD_LOG_DUMP_BUF 15
#define WLAN_STATIC_DHD_LOG_DUMP_BUF_EX 16
#define WLAN_STATIC_DHD_PKTLOG_DUMP_BUF 17

#define WLAN_SCAN_BUF_SIZE (64 * 1024)

#if defined(CONFIG_64BIT)
#define WLAN_DHD_INFO_BUF_SIZE (32 * 1024)
#define WLAN_DHD_WLFC_BUF_SIZE (64 * 1024)
#define WLAN_DHD_IF_FLOW_LKUP_SIZE (64 * 1024)
#else
#define WLAN_DHD_INFO_BUF_SIZE (32 * 1024)
#define WLAN_DHD_WLFC_BUF_SIZE (16 * 1024)
#define WLAN_DHD_IF_FLOW_LKUP_SIZE (20 * 1024)
#endif /* CONFIG_64BIT */
/* Have 2MB ramsize to accomodate future chips */
#define WLAN_DHD_MEMDUMP_SIZE (2048 * 1024)

#define PREALLOC_WLAN_SEC_NUM 4
#define PREALLOC_WLAN_BUF_NUM 160
#define PREALLOC_WLAN_SECTION_HEADER 24

#ifdef CONFIG_BCMDHD_PCIE
#define DHD_SKB_1PAGE_BUFSIZE (PAGE_SIZE * 1)
#define DHD_SKB_2PAGE_BUFSIZE (PAGE_SIZE * 2)
#define DHD_SKB_4PAGE_BUFSIZE (PAGE_SIZE * 4)

#define WLAN_SECTION_SIZE_0 (PREALLOC_WLAN_BUF_NUM * 128)
#define WLAN_SECTION_SIZE_1 0
#define WLAN_SECTION_SIZE_2 0
#define WLAN_SECTION_SIZE_3 (PREALLOC_WLAN_BUF_NUM * 1024)

#define DHD_SKB_1PAGE_BUF_NUM 0
#define DHD_SKB_2PAGE_BUF_NUM 128
#define DHD_SKB_4PAGE_BUF_NUM 0

#else
#define DHD_SKB_HDRSIZE 336
#define DHD_SKB_1PAGE_BUFSIZE ((PAGE_SIZE * 1) - DHD_SKB_HDRSIZE)
#define DHD_SKB_2PAGE_BUFSIZE ((PAGE_SIZE * 2) - DHD_SKB_HDRSIZE)
#define DHD_SKB_4PAGE_BUFSIZE ((PAGE_SIZE * 4) - DHD_SKB_HDRSIZE)

#define WLAN_SECTION_SIZE_0 (PREALLOC_WLAN_BUF_NUM * 128)
#define WLAN_SECTION_SIZE_1 (PREALLOC_WLAN_BUF_NUM * 128)
#define WLAN_SECTION_SIZE_2 (PREALLOC_WLAN_BUF_NUM * 512)
#define WLAN_SECTION_SIZE_3 (PREALLOC_WLAN_BUF_NUM * 1024)

#define DHD_SKB_1PAGE_BUF_NUM 8
#define DHD_SKB_2PAGE_BUF_NUM 8
#define DHD_SKB_4PAGE_BUF_NUM 1
#endif /* CONFIG_BCMDHD_PCIE */

#define WLAN_SKB_1_2PAGE_BUF_NUM                                               \
    ((DHD_SKB_1PAGE_BUF_NUM) + (DHD_SKB_2PAGE_BUF_NUM))
#define WLAN_SKB_BUF_NUM ((WLAN_SKB_1_2PAGE_BUF_NUM) + (DHD_SKB_4PAGE_BUF_NUM))

#define WLAN_MAX_PKTID_ITEMS (8192)
#define WLAN_DHD_PKTID_MAP_HDR_SIZE (20 + 4 * (WLAN_MAX_PKTID_ITEMS + 1))
#define WLAN_DHD_PKTID_MAP_ITEM_SIZE (32)
#define WLAN_DHD_PKTID_MAP_SIZE                                                \
    ((WLAN_DHD_PKTID_MAP_HDR_SIZE) +                                           \
     ((WLAN_MAX_PKTID_ITEMS + 1) * WLAN_DHD_PKTID_MAP_ITEM_SIZE))

#define WLAN_MAX_PKTID_IOCTL_ITEMS (32)
#define WLAN_DHD_PKTID_IOCTL_MAP_HDR_SIZE                                      \
    (20 + 4 * (WLAN_MAX_PKTID_IOCTL_ITEMS + 1))
#define WLAN_DHD_PKTID_IOCTL_MAP_ITEM_SIZE (32)
#define WLAN_DHD_PKTID_IOCTL_MAP_SIZE                                          \
    ((WLAN_DHD_PKTID_IOCTL_MAP_HDR_SIZE) +                                     \
     ((WLAN_MAX_PKTID_IOCTL_ITEMS + 1) * WLAN_DHD_PKTID_IOCTL_MAP_ITEM_SIZE))

#define DHD_LOG_DUMP_BUF_SIZE (1024 * 1024 * 4)
#define DHD_LOG_DUMP_BUF_EX_SIZE (1024 * 1024 * 4)

#define DHD_PKTLOG_DUMP_BUF_SIZE (64 * 1024)

#define WLAN_DHD_WLFC_HANGER_MAXITEMS 3072
#define WLAN_DHD_WLFC_HANGER_ITEM_SIZE 32
#define WLAN_DHD_WLFC_HANGER_SIZE                                              \
    ((WLAN_DHD_WLFC_HANGER_ITEM_SIZE) +                                        \
     ((WLAN_DHD_WLFC_HANGER_MAXITEMS) * (WLAN_DHD_WLFC_HANGER_ITEM_SIZE)))

static struct sk_buff *wlan_static_skb[WLAN_SKB_BUF_NUM];

struct wlan_mem_prealloc {
    void *mem_ptr;
    unsigned long size;
};

static struct wlan_mem_prealloc wlan_mem_array[PREALLOC_WLAN_SEC_NUM] = {
    {NULL, (WLAN_SECTION_SIZE_0 + PREALLOC_WLAN_SECTION_HEADER)},
    {NULL, (WLAN_SECTION_SIZE_1 + PREALLOC_WLAN_SECTION_HEADER)},
    {NULL, (WLAN_SECTION_SIZE_2 + PREALLOC_WLAN_SECTION_HEADER)},
    {NULL, (WLAN_SECTION_SIZE_3 + PREALLOC_WLAN_SECTION_HEADER)}};

static void *wlan_static_scan_buf0 = NULL;
static void *wlan_static_scan_buf1 = NULL;
static void *wlan_static_dhd_info_buf = NULL;
static void *wlan_static_dhd_wlfc_buf = NULL;
static void *wlan_static_if_flow_lkup = NULL;
static void *wlan_static_dhd_memdump_ram = NULL;
static void *wlan_static_dhd_wlfc_hanger = NULL;
static void *wlan_static_dhd_pktid_map = NULL;
static void *wlan_static_dhd_pktid_ioctl_map = NULL;
static void *wlan_static_dhd_log_dump_buf = NULL;
static void *wlan_static_dhd_log_dump_buf_ex = NULL;
static void *wlan_static_dhd_pktlog_dump_buf = NULL;

void *dhd_wlan_mem_prealloc(int section, unsigned long size)
{
    if (section == PREALLOC_WLAN_SEC_NUM) {
        return wlan_static_skb;
    }

    if (section == WLAN_STATIC_SCAN_BUF0) {
        return wlan_static_scan_buf0;
    }

    if (section == WLAN_STATIC_SCAN_BUF1) {
        return wlan_static_scan_buf1;
    }

    if (section == WLAN_STATIC_DHD_INFO_BUF) {
        if (size > WLAN_DHD_INFO_BUF_SIZE) {
            pr_err("request DHD_INFO size(%lu) is bigger than"
                   " static size(%d).\n",
                   size, WLAN_DHD_INFO_BUF_SIZE);
            return NULL;
        }
        return wlan_static_dhd_info_buf;
    }

    if (section == WLAN_STATIC_DHD_WLFC_BUF) {
        if (size > WLAN_DHD_WLFC_BUF_SIZE) {
            pr_err("request DHD_WLFC size(%lu) is bigger than"
                   " static size(%d).\n",
                   size, WLAN_DHD_WLFC_BUF_SIZE);
            return NULL;
        }
        return wlan_static_dhd_wlfc_buf;
    }

    if (section == WLAN_STATIC_DHD_WLFC_HANGER) {
        if (size > WLAN_DHD_WLFC_HANGER_SIZE) {
            pr_err("request DHD_WLFC_HANGER size(%lu) is bigger than"
                   " static size(%d).\n",
                   size, WLAN_DHD_WLFC_HANGER_SIZE);
            return NULL;
        }
        return wlan_static_dhd_wlfc_hanger;
    }

    if (section == WLAN_STATIC_DHD_IF_FLOW_LKUP) {
        if (size > WLAN_DHD_IF_FLOW_LKUP_SIZE) {
            pr_err("request DHD_WLFC size(%lu) is bigger than"
                   " static size(%d).\n",
                   size, WLAN_DHD_WLFC_BUF_SIZE);
            return NULL;
        }
        return wlan_static_if_flow_lkup;
    }

    if (section == WLAN_STATIC_DHD_MEMDUMP_RAM) {
        if (size > WLAN_DHD_MEMDUMP_SIZE) {
            pr_err("request DHD_MEMDUMP_RAM size(%lu) is bigger"
                   " than static size(%d).\n",
                   size, WLAN_DHD_MEMDUMP_SIZE);
            return NULL;
        }
        return wlan_static_dhd_memdump_ram;
    }

    if (section == WLAN_STATIC_DHD_PKTID_MAP) {
        if (size > WLAN_DHD_PKTID_MAP_SIZE) {
            pr_err("request DHD_PKTID_MAP size(%lu) is bigger than"
                   " static size(%d).\n",
                   size, WLAN_DHD_PKTID_MAP_SIZE);
            return NULL;
        }
        return wlan_static_dhd_pktid_map;
    }

    if (section == WLAN_STATIC_DHD_PKTID_IOCTL_MAP) {
        if (size > WLAN_DHD_PKTID_IOCTL_MAP_SIZE) {
            pr_err("request DHD_PKTID_IOCTL_MAP size(%lu) is bigger than"
                   " static size(%d).\n",
                   size, WLAN_DHD_PKTID_IOCTL_MAP_SIZE);
            return NULL;
        }
        return wlan_static_dhd_pktid_ioctl_map;
    }

    if (section == WLAN_STATIC_DHD_LOG_DUMP_BUF) {
        if (size > DHD_LOG_DUMP_BUF_SIZE) {
            pr_err("request DHD_LOG_DUMP_BUF size(%lu) is bigger then"
                   " static size(%d).\n",
                   size, DHD_LOG_DUMP_BUF_SIZE);
            return NULL;
        }
        return wlan_static_dhd_log_dump_buf;
    }

    if (section == WLAN_STATIC_DHD_LOG_DUMP_BUF_EX) {
        if (size > DHD_LOG_DUMP_BUF_EX_SIZE) {
            pr_err("request DHD_LOG_DUMP_BUF_EX size(%lu) is bigger then"
                   " static size(%d).\n",
                   size, DHD_LOG_DUMP_BUF_EX_SIZE);
            return NULL;
        }
        return wlan_static_dhd_log_dump_buf_ex;
    }

    if (section == WLAN_STATIC_DHD_PKTLOG_DUMP_BUF) {
        if (size > DHD_PKTLOG_DUMP_BUF_SIZE) {
            pr_err("request DHD_PKTLOG_DUMP_BUF size(%lu) is bigger then"
                   " static size(%d).\n",
                   size, DHD_PKTLOG_DUMP_BUF_SIZE);
            return NULL;
        }
        return wlan_static_dhd_pktlog_dump_buf;
    }

    if ((section < 0) || (section >= PREALLOC_WLAN_SEC_NUM)) {
        return NULL;
    }

    if (wlan_mem_array[section].size < size) {
        return NULL;
    }

    return wlan_mem_array[section].mem_ptr;
}
EXPORT_SYMBOL(dhd_wlan_mem_prealloc);

int dhd_init_wlan_mem(void)
{
    int i;
    int j;

#if !defined(CONFIG_BCMDHD_PCIE)
    for (i = 0; i < DHD_SKB_1PAGE_BUF_NUM; i++) {
        wlan_static_skb[i] = __dev_alloc_skb(DHD_SKB_1PAGE_BUFSIZE, GFP_KERNEL);
        if (!wlan_static_skb[i]) {
            goto err_skb_alloc;
        }
    }
#endif /* !CONFIG_BCMDHD_PCIE */

    for (i = DHD_SKB_1PAGE_BUF_NUM; i < WLAN_SKB_1_2PAGE_BUF_NUM; i++) {
        wlan_static_skb[i] = __dev_alloc_skb(DHD_SKB_2PAGE_BUFSIZE, GFP_KERNEL);
        if (!wlan_static_skb[i]) {
            goto err_skb_alloc;
        }
    }

#if !defined(CONFIG_BCMDHD_PCIE)
    wlan_static_skb[i] = __dev_alloc_skb(DHD_SKB_4PAGE_BUFSIZE, GFP_KERNEL);
    if (!wlan_static_skb[i]) {
        goto err_skb_alloc;
    }
#endif /* !CONFIG_BCMDHD_PCIE */

    for (i = 0; i < PREALLOC_WLAN_SEC_NUM; i++) {
        if (wlan_mem_array[i].size > 0) {
            wlan_mem_array[i].mem_ptr =
                kmalloc(wlan_mem_array[i].size, GFP_KERNEL);

            if (!wlan_mem_array[i].mem_ptr) {
                goto err_mem_alloc;
            }
        }
    }

    wlan_static_scan_buf0 = kmalloc(WLAN_SCAN_BUF_SIZE, GFP_KERNEL);
    if (!wlan_static_scan_buf0) {
        pr_err("Failed to alloc wlan_static_scan_buf0\n");
        goto err_mem_alloc;
    }

    wlan_static_scan_buf1 = kmalloc(WLAN_SCAN_BUF_SIZE, GFP_KERNEL);
    if (!wlan_static_scan_buf1) {
        pr_err("Failed to alloc wlan_static_scan_buf1\n");
        goto err_mem_alloc;
    }

    wlan_static_dhd_log_dump_buf = kmalloc(DHD_LOG_DUMP_BUF_SIZE, GFP_KERNEL);
    if (!wlan_static_dhd_log_dump_buf) {
        pr_err("Failed to alloc wlan_static_dhd_log_dump_buf\n");
        goto err_mem_alloc;
    }

    wlan_static_dhd_log_dump_buf_ex =
        kmalloc(DHD_LOG_DUMP_BUF_EX_SIZE, GFP_KERNEL);
    if (!wlan_static_dhd_log_dump_buf_ex) {
        pr_err("Failed to alloc wlan_static_dhd_log_dump_buf_ex\n");
        goto err_mem_alloc;
    }

    wlan_static_dhd_info_buf = kmalloc(WLAN_DHD_INFO_BUF_SIZE, GFP_KERNEL);
    if (!wlan_static_dhd_info_buf) {
        pr_err("Failed to alloc wlan_static_dhd_info_buf\n");
        goto err_mem_alloc;
    }

#ifdef CONFIG_BCMDHD_PCIE
    wlan_static_if_flow_lkup = kmalloc(WLAN_DHD_IF_FLOW_LKUP_SIZE, GFP_KERNEL);
    if (!wlan_static_if_flow_lkup) {
        pr_err("Failed to alloc wlan_static_if_flow_lkup\n");
        goto err_mem_alloc;
    }

#ifdef CONFIG_BCMDHD_PREALLOC_PKTIDMAP
    wlan_static_dhd_pktid_map = kmalloc(WLAN_DHD_PKTID_MAP_SIZE, GFP_KERNEL);
    if (!wlan_static_dhd_pktid_map) {
        pr_err("Failed to alloc wlan_static_dhd_pktid_map\n");
        goto err_mem_alloc;
    }

    wlan_static_dhd_pktid_ioctl_map =
        kmalloc(WLAN_DHD_PKTID_IOCTL_MAP_SIZE, GFP_KERNEL);
    if (!wlan_static_dhd_pktid_ioctl_map) {
        pr_err("Failed to alloc wlan_static_dhd_pktid_ioctl_map\n");
        goto err_mem_alloc;
    }
#endif /* CONFIG_BCMDHD_PREALLOC_PKTIDMAP */
#else
    wlan_static_dhd_wlfc_buf = kmalloc(WLAN_DHD_WLFC_BUF_SIZE, GFP_KERNEL);
    if (!wlan_static_dhd_wlfc_buf) {
        pr_err("Failed to alloc wlan_static_dhd_wlfc_buf\n");
        goto err_mem_alloc;
    }

    wlan_static_dhd_wlfc_hanger =
        kmalloc(WLAN_DHD_WLFC_HANGER_SIZE, GFP_KERNEL);
    if (!wlan_static_dhd_wlfc_hanger) {
        pr_err("Failed to alloc wlan_static_dhd_wlfc_hanger\n");
        goto err_mem_alloc;
    }
#endif /* CONFIG_BCMDHD_PCIE */

#ifdef CONFIG_BCMDHD_PREALLOC_MEMDUMP
    wlan_static_dhd_memdump_ram = kmalloc(WLAN_DHD_MEMDUMP_SIZE, GFP_KERNEL);
    if (!wlan_static_dhd_memdump_ram) {
        pr_err("Failed to alloc wlan_static_dhd_memdump_ram\n");
        goto err_mem_alloc;
    }
#endif /* CONFIG_BCMDHD_PREALLOC_MEMDUMP */

    wlan_static_dhd_pktlog_dump_buf =
        kmalloc(DHD_PKTLOG_DUMP_BUF_SIZE, GFP_KERNEL);
    if (!wlan_static_dhd_pktlog_dump_buf) {
        pr_err("Failed to alloc wlan_static_dhd_pktlog_dump_buf\n");
        goto err_mem_alloc;
    }

    pr_err("%s: WIFI MEM Allocated\n", __FUNCTION__);
    return 0;

err_mem_alloc:
#ifdef CONFIG_BCMDHD_PREALLOC_MEMDUMP
    if (wlan_static_dhd_memdump_ram) {
        kfree(wlan_static_dhd_memdump_ram);
    }

#endif /* CONFIG_BCMDHD_PREALLOC_MEMDUMP */

#ifdef CONFIG_BCMDHD_PCIE
    if (wlan_static_if_flow_lkup) {
        kfree(wlan_static_if_flow_lkup);
    }

#ifdef CONFIG_BCMDHD_PREALLOC_PKTIDMAP
    if (wlan_static_dhd_pktid_map) {
        kfree(wlan_static_dhd_pktid_map);
    }

    if (wlan_static_dhd_pktid_ioctl_map) {
        kfree(wlan_static_dhd_pktid_ioctl_map);
    }
#endif /* CONFIG_BCMDHD_PREALLOC_PKTIDMAP */
#else
    if (wlan_static_dhd_wlfc_buf) {
        kfree(wlan_static_dhd_wlfc_buf);
    }

    if (wlan_static_dhd_wlfc_hanger) {
        kfree(wlan_static_dhd_wlfc_hanger);
    }
#endif /* CONFIG_BCMDHD_PCIE */
    if (wlan_static_dhd_info_buf) {
        kfree(wlan_static_dhd_info_buf);
    }

    if (wlan_static_dhd_log_dump_buf) {
        kfree(wlan_static_dhd_log_dump_buf);
    }

    if (wlan_static_dhd_log_dump_buf_ex) {
        kfree(wlan_static_dhd_log_dump_buf_ex);
    }

    if (wlan_static_scan_buf1) {
        kfree(wlan_static_scan_buf1);
    }

    if (wlan_static_scan_buf0) {
        kfree(wlan_static_scan_buf0);
    }

    if (wlan_static_dhd_pktlog_dump_buf) {
        kfree(wlan_static_dhd_pktlog_dump_buf);
    }

    pr_err("Failed to mem_alloc for WLAN\n");

    for (j = 0; j < i; j++) {
        kfree(wlan_mem_array[j].mem_ptr);
    }

    i = WLAN_SKB_BUF_NUM;

err_skb_alloc:
    pr_err("Failed to skb_alloc for WLAN\n");
    for (j = 0; j < i; j++) {
        dev_kfree_skb(wlan_static_skb[j]);
    }

    return -ENOMEM;
}
EXPORT_SYMBOL(dhd_init_wlan_mem);

void dhd_exit_wlan_mem(void)
{
    int i = 0;

#ifdef CONFIG_BCMDHD_PREALLOC_MEMDUMP
    if (wlan_static_dhd_memdump_ram) {
        kfree(wlan_static_dhd_memdump_ram);
    }

#endif /* CONFIG_BCMDHD_PREALLOC_MEMDUMP */

#ifdef CONFIG_BCMDHD_PCIE
    if (wlan_static_if_flow_lkup) {
        kfree(wlan_static_if_flow_lkup);
    }

#ifdef CONFIG_BCMDHD_PREALLOC_PKTIDMAP
    if (wlan_static_dhd_pktid_map) {
        kfree(wlan_static_dhd_pktid_map);
    }

    if (wlan_static_dhd_pktid_ioctl_map) {
        kfree(wlan_static_dhd_pktid_ioctl_map);
    }
#endif /* CONFIG_BCMDHD_PREALLOC_PKTIDMAP */
#else
    if (wlan_static_dhd_wlfc_buf) {
        kfree(wlan_static_dhd_wlfc_buf);
    }

    if (wlan_static_dhd_wlfc_hanger) {
        kfree(wlan_static_dhd_wlfc_hanger);
    }
#endif /* CONFIG_BCMDHD_PCIE */
    if (wlan_static_dhd_info_buf) {
        kfree(wlan_static_dhd_info_buf);
    }

    if (wlan_static_dhd_log_dump_buf) {
        kfree(wlan_static_dhd_log_dump_buf);
    }

    if (wlan_static_dhd_log_dump_buf_ex) {
        kfree(wlan_static_dhd_log_dump_buf_ex);
    }

    if (wlan_static_scan_buf1) {
        kfree(wlan_static_scan_buf1);
    }

    if (wlan_static_scan_buf0) {
        kfree(wlan_static_scan_buf0);
    }

    if (wlan_static_dhd_pktlog_dump_buf) {
        kfree(wlan_static_dhd_pktlog_dump_buf);
    }

    pr_err("Failed to mem_alloc for WLAN\n");

    for (i = 0; i < PREALLOC_WLAN_SEC_NUM; i++) {
        if (wlan_mem_array[i].mem_ptr) {
            kfree(wlan_mem_array[i].mem_ptr);
        }
    }

    pr_err("Failed to skb_alloc for WLAN\n");
    for (i = 0; i < WLAN_SKB_BUF_NUM; i++) {
        dev_kfree_skb(wlan_static_skb[i]);
    }

    return;
}
EXPORT_SYMBOL(dhd_exit_wlan_mem);
#endif /* CONFIG_BROADCOM_WIFI_RESERVED_MEM */
